"Persian grass" spinach is what season vegetables? What are the autumn and winter planting techniques?

I don't know how many people know that spinach, also known as Persian food, spinach, spinach, parrot, red root vegetable and dragon vegetable, is an "imported dish" originating from Iran. Although there are greenhouses that can be eaten all the year round, do you know what season spinach is? What are the planting techniques in autumn and winter?

In what season is spinach a vegetable?

1. Spinach grows most vigorously when the temperature is low and the sunshine time is short, and the spring climate is the most suitable for spinach growth, so it is the most delicious.

two。 Spinach is rich in carotenoids, vitamin C, vitamin K, minerals (calcium, iron, etc.), coenzyme Q10 and other nutrients, which can be often used to cook soup, cold, stir-fry, stir-fry with meat dishes or cushion plate.

Second, what are the planting techniques of spinach in autumn and winter?

1. Spring spinach can begin to sow when the temperature rises above 5 °C after the beginning of spring. March is the suitable sowing time. Summer spinach is sown in May-July, autumn spinach is sown in August-September, and overwintering spinach is sown in mid-October to early November.

In addition, the early stage of spring spinach should be covered with plastic film for thermal insulation, which can be directly covered on the border surface. After emergence, the plastic film can be removed or changed to a small arch shed to cover the day and night cover, sunny cover and rain cover, so that the seedlings can see more light, more refining seedlings, and time seedlings. Topdressing fertilizer and water should be applied lightly and frequently with mature human and animal manure in the early stage, and quick-acting nitrogen fertilizer should be applied in the later stage, especially 15 days before harvest.

two。 After soaking the seeds in water for 12 hours one week before sowing, spinach was placed in a well or treated in a refrigerator or freezer at about 4 °C for 24 hours, then germinated at 20-25 °C, and then germinated after 3-5 days.

In addition, after autumn sowing, straw should be covered or small arch shed should be used to cover the sunshade net to prevent high temperature and rainstorm erosion. And often keep the soil warm and moist, 6-7 days can be complete seedlings.

3. Pest control of spinach:

(1) aphids: spray with 1000 times of dimethoate or 2000-3000 times of aldicarb.

(2) Leaf miner: spray with 1000 times of 50% phoxim EC or 1000 times of 80% trichlorfon powder.

(3) downy mildew: spray with 58% Redomir 500 times, or 75% chlorothalonil 600 times.

(4) anthrax: spray control with 50% thiophanate methyl 500 times, or 50% carbendazim 700 times.

Third, what are the taboos of spinach?

1. Spinach cannot be eaten with cucumbers: cucumbers contain vitamin C decomposing enzymes, while spinach is rich in vitamin C, so they should not be eaten together.

two。 Spinach should not be eaten with foods with high calcium content such as milk.

3. Spinach is not suitable for stir-frying pig liver: pig liver is rich in copper, iron and other metal elements. once combined with spinach with high vitamin C, metal ions are easy to oxidize vitamin C and lose its nutritional value. Animal livers, egg yolks and soybeans are all rich in iron, which should not be eaten with spinach containing more oxalic acid. Because both cellulose and oxalic acid affect the absorption of iron in the above-mentioned foods.

4. You can't eat spinach with soybeans. If you eat with soybeans, it will inhibit the release of copper, resulting in poor copper metabolism.

5. Spinach cannot be eaten with calcium tablets. Spinach is rich in oxalic acid. Oxalate ion is easy to form calcium oxalate precipitation in the intestinal tract, which not only hinders the absorption of calcium, but also easily forms stones.

6. People with urinary calculi, gastrointestinal deficiency and cold, thin stools, weak spleen and stomach, weak kidney function, nephritis and kidney stones should not eat too much or avoid eating.